Changes

O'Hara & O'Hara (1999) obtained surveys from 139 sexually experienced women. One survey was excluded. Of the 138 women included in the survey, 118 (85%} preferred their male partner to have a complete [[penis]].<ref name="ohara1999">{{REFjournal

When the anatomically complete [[penis]] thrusts in the vagina, it does not slide, but rather glides on its own 'bedding' of movable [[skin]], in much the same way that a turtle's neck glides in and out of the folder layers of [[skin]] surrounding it. The underlying corpus cavernosa and corpus spongiosum slide within the [[penile skin]], while the [[skin]] juxtaposed agaist the vaginal wall moves very little. This sheath-within-a-sheath alignment allows penile movement, and vaginal and penile stimulation, with minimal friction or loss of secretions. When the penile shaft is withdrawn slightly from the vagina, the [[foreskin]] bunches up behind the corona in a manner that allows the tip of the [[foreskin ]] which contains the highest density of fine-touch neuroreceptors in the [[penis ]] to contact the corona of the [[glans ]] which has the highest concentration of fine-touch receptors on the glans. This intense stimulation discourages the penile shaft from further withdrawal, explaining the short thrusting style that women noted in their unaltered partners.<ref name="ohara1999" />